#include <stdio.h>
//int main()
//{
//	char ch = 'a';
//	return 0;
//}
//#include <stdio.h>
//int main()
//{
//	int age = 17;
//	printf("%d\n", age);
//	age = age + 1;
//	printf("%d\n", age);
//	return 0;
//}

#include <stdio.h>
int main()
{
	float weight = 55.54;
	printf("%f\n", weight);
	weight = weight - 10;
	printf("%f\n",weight);
	return 0;
}